
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

CBSE Class 11 Pre Board 2020 : Biology (Delhi Public School (DPS), Jammu)

3 pages, 38 questions, 0 questions with responses, 0 total responses,

	Cbse 11	+Fave Message
	Profile Timeline Uploads

Home > cbse11 > F Also featured on: School Page

Instantly get Model Answers to questions on this ResPaper. Try now!
NEW ResPaper Exclusive!

Formatting page ...

DELHI PUBLIC SCHOOL, JAMMU FINAL EXAMINATION ASSIGNMENT SESSION (2019-20) SUBJECT: BIOLOGY CLASS: XI Q1. Who gave the nomenclature according to which humans are called Homo sapiens. a) Darwin c) Aristotle b) Mendel d) Linnaeus Q2. Diatoms are placed under a) Chrysophytes c) Slime moulds b) Euglenoids d) Dinoflagellates Q3. Corm is modification of a) Root c) Bud b) Stem d) leaf Q4. Lateral roots develop from a) Epidermis c) Endodermis b) Cortex d) Pericycle Q5. Largest Synovial joint is a) Knee Joint c) Shoulder Joint b) Hip Joint d) Ankle Joint Q6. Plants are autotrophic. Name any two plants that are partially heterotrophic. Q7. Differentiate between chordates and non chordates. Q8. What do you mean by collateral and conjoint vascular bundles? Q9. How is wall lizard able to walk over vertical walls and ceilings? Q10. Explain why how transpiration is both useful and harmful to plants. Q11. What is leghaemoglobin and what is its function? Q12. Explain any one heterocrine gland of the body. Q13. Explain different zones of the root. Q14. Explain diagrammatically the female reproductive system of cockroach. Q15. List various steps involves in light reaction of photosynthesis. Explain photolysis of water in detail. Q16. Define chemosmotic hypothesis. Explain it. Q17. List some important functions of any one plant growth inhibitor. Q18. Explain C4 cycle in angiospermic plants. Q19. Explain the role of various enzymes in human digestion. Q20. How gaseous exchange occurs in alveoli of human beings. Q21. Explain the mechanism of hearing and vision in human beings. Q22. What do you mean by Phloem loading and unloading? Explain it with respect to Bulk Flow hypothesis. Q23.Pacemaker is a device that sets the rate or frequency of an activity. Human heart has a natural pacemaker in the form of SA node. It controls heart beat by producing rhythemic impulses. The impulse then passes to both atria and AV node. i). Define pacemaker. ii). Name the pacemaker of the heart. iii). What is the composition of the human artificial pacemaker? iv). When is artificial Pacemaker used? Q24. Uraemia is the disorder of human excretory system. It is commonly accompanied by vomiting, oedema, hypertension, pain etc. it can be cured by diuresis and haemodialysis. i) Define uraemia. ii) How uraemia can be cured? iii) List some important symptoms of uraemia iv) What do you mean by haemodialysis? Q25a. Which division amony meiosis is called equational and why? b. Explain prophase I of Meiosis I in detail Or Explain different stages of Mitosis. Q26. Define nucleotide and nucleoside. Explain the chemical structure of DNA. Or a) Differentiate between primary and secondary structure of protein. b) Explain the mechanism of enzyme activity. Q27. Define chromosome and chromatid. Explain different types of chromosomes based upon the position of centromere. Or a) What are Palade particles? What is their function in the cell? b) What is the role of lysosomes in lung fibrosis, rheumatoid arthritis and gout?

Formatting page ...

Tags : cbse class xi, cbse 11, cbse 11th standard, cbse mock papers, cbse sample papers, cbse books, portal for cbse india, cbse question bank, central board of secondary education, past cbse question papers with answers, prelims preliminary exams, pre board exam papers, cbse model test papers, solved board question papers of cbse last year, previous years solved question papers, free online cbse solved question paper, cbse syllabus, india cbse board sample questions papers, last 10 years cbse final exam papers, cbse question papers, cbse guess sample questions papers, cbse important questions, specimen / mock papers.

cbse11 chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: